<html>
  <head>
    <meta charset="utf-8" />
    <style>
        body{
            background-color: skyblue;
        }
      button {
        white-space: nowrap;
        cursor: pointer;
        outline: none;
        border: none;
        border-radius: 6px;
        font-size: 16px;
      }
    </style>
  </head>
  <body>
    <button id="btn1">投简历</button>
    <script src="main.js"></script>
  </body>
</html>
